
The world was eroded by Helheim and the nationwide Yggdrasil Corporation conspires to sacrifice the majority of human beings. Mysterious fruits of Helheim give Kouta Kazuraba the power to transform into Armored Rider Gaim.
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Episode 1
Transform! An Orange Fell From the Sky!?
While in Zawame's Free Performance Zone, Mai and Mitsuzane of the dance team Team Gaim are having a free-spirited dance when members of rival Team Baron scare them away when…
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Episode 2
Finisher! Pine Kick!
Kouta tries to use his new abilities to help out at his part-time job, but he only gets in the way. And when Yuuya mysteriously disappears, Kouta wonders if what…
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Episode 3
Shock! My Rival Transforms into a Banana!?
Kouta starts to gain a reputation in Inves Games by fighting them as Kamen Rider Gaim, when Kaito Kumon reveals he too has a Sengoku Driver and the Banana Lockseed.
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Episode 4
Birth! The Third One is a Grape Rider!
Kouta and Kaito work together to try to find Yuya, but they instead face off against an even more terrible enemy.
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Episode 5
Revive! The Strawberry Arms of Friendship!
Kouta tries to overcome the events that befell him in the Helheim Forest against Zangetsu while Kaito challenges Mitsuzane to a fight, with the new Armored Rider Ryugen unable to…
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Episode 6
The Durian Rider appears!
Hase and Jonouchi transform into Armored Riders Kurokage and Gridon, but something strange happens during their fight with Baron against Gaim and Ryugen. Later, Kouta tries to get a part-time…
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Episode 7
Giant Watermelon, Big Bang!
After easily defeating both Kurokage and Gridon, Kamen Rider Bravo steals their Lockseeds and sets his sights on defeating all of the Armored Riders. Kouta is angered that Oren has…
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Episode 8
Baron’s New Power, Mango!
After his defeat at the hands of Bravo, Kaito believes he is no longer strong enough and seeks out a new strength. While Kouta seeks out a new job, Mai…
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Episode 9
The Big Plan to Capture the Monster Inves
Kouta and Mitsuzane must hunt down a fully manifested Inves that is randomly attacking people in the city while also dealing with keeping up their Beat Rider ranking.
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Episode 10
Big Rider Gathering! Expose the Mystery of the Forest!
Kouta and Mitsuzane begin to postulate on the identity of the white Armored Rider who seems to be destroying all evidence of the Inves entering their dimension. To try to…
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Episode 11
The Truth Behind the Christmas Game
As the Lockseed gathering "game" begins, Baron and Bravo fight between themselves, while the white Armored Rider, Kamen Rider Zangetsu, investigates the infiltration into Helheim Forest. Meanwhile, Kouta, who has…
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Episode 12
A Next Generation Rider Appears
Kouta and Mitsuzane attempt to warn the Beat Riders about Yggdrasill's manipulation, only to find that Yggdrasill is deploying Kurokage Troopers to silence anyone who knows the truth as Zangetsu…
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Episode 13
Gaim and Baron’s Tag Team of Friendship!
A mysterious bacteria is infecting people in Zawame City. In the crisis situation, Kouta, Mai, and Mitsuzane try to find out the cause behind this.
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Episode 14
The Secret of Helheim Forest
After Hase transforms into an Inves, Gaim tries to take him out before he can do much damage but finds it difficult to harm someone who he believes is still…
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Episode 15
The Man Who Developed the Belts
With Kouta and Kaito both captured by the Yggdrasill Corporation, they are brought to Ryoma Sengoku who reveals that he created the Sengoku Drivers and Genesis Drivers, and reveals the…
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Episode 16
New Arms! The Birth of Jimber Lemon!
After escaping the clutches of the Yggdrasill Corporation, Kouta wonders why all three of them were able to escape so easily, knowing how Ryoma Sengoku was interested in them. Later,…
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Episode 17
Peach Rider, Malika’s Angelic Entrance!
After Takatora reveals the truth about Helheim Forest to Mitsuzane, he tasks his brother with recovering Kouta's Sengoku Driver. Elsewhere, Oren and Jonouchi plan to perform the same act with…
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Episode 18
Goodbye, Beat Riders
Mai tries to host a dance contest to bring everyone's morale up, but none of the teams will participate. Mai tries to get Kouta to convince Team Baron to join,…
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Episode 19
Given a Secret Weapon
Duke fights against Gaim and Baron and manages to come out on top. As they lick their wounds, DJ Sagara appears and gives Kouta a present in the form of…
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Episode 20
The First Invasion of the End of the World
Takatora shows Kouta the truth behind Helheim Forest, at the same time Kaito would learn the same thing from Ryoma, Sid, and Yoko. Meanwhile in Zawame City, more Inves invade…
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Episode 21
Yggdrasill’s Secret
The Helheim Forest will soon destroy the Earth if no one acts on it. Kouta informs Mitsuzane about this fact and says they must do something, but Mitsuzane is hesitant…
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Episode 22
The One-in-Seven Truth
The Crack at Yggdrasill's lab causes more and more Cracks to appear throughout Zawame. Kouta believes the solution is to close Yggdrasill's Crack before any more Inves can attack. However,…
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Episode 23
Into Battle! Kachidoki Arms!
Now aware that he killed Yuya, Kouta loses all will to fight, and will not even seek to destroy the Scalar System. As he struggles with the thought of telling…
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Episode 24
The New Powerful Enemies, the Overlords
Baron continues to attempt to defeat the Over Lord Inves to no success, until Marika suggests a new plan. Mitsuzane tries to get Kouta, now that he has the Peach…
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Episode 25
Guridon and Bravo the Ultimate Tag Team
After watching Kouta, Mitsuzane, and Zack battle Inves, Jonouchi realizes that the dance team days are over, again. Later, Oren arrives to begin Jonouchi's next set of training. Kaito tries…
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Episode 26
Baron’s Genesis Transformation!
Mai wants to know why Kouta has been hiding from her, and he reveals the truth to her about Helheim Forest, as well as the Inves and the fate of…
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Episode 27
Time to Know the Truth
Kouta is knocked unconscious by Ryugen's backhanded attack, and Baron fights Ryugen for acting so cowardly. Meanwhile, Takatora mulls over the idea of having to cull the Earth's population down…
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Episode 28
Zangetsu’s Betrayal
Takatora reports to Ryoma, Sid, and Yoko that Kouta will be working for them in hunting down the Over Lords in an attempt to stop Helheim Forest. They agree to…
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Episode 29
The Overlord King
In the forest, Takatora is saved by the Over Lords and introduced to their leader Rosyuo who tells him of their past as the Femshinmu people and the secrets of…
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Episode 30
Red and Blue Kikaider
Kouta and Mai meet a young man who can remember nothing about himself other than his name, Jiro. During a rain storm, Kota tries to pull Jiro out of the…
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Episode 31
Location of the Forbidden Fruit
The "Fruit of Knowledge" gives someone the power to remake the world itself and become God. Sid overhears from one of the Over Lords, Redyue, that Rosyuo has been safeguarding…
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Episode 32
The Ultimate Power! Kiwami Arms!
Baron Lemon Energy Arms and Knuckle cannot hold off Demushu forever, and he escapes them. With Sid murdered at the hands of Rosyuo, he instructs Redyue to continue the invasion…
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Episode 33
Beat Riders Gather!
The Inves are invading, Kouta's sister takes shelter, and Kouta patrols with the others. Trying to get the Golden Fruit, Ryoma reveals Project Ark to the world, which erupts into…
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Episode 34
The Monarch’s Power and the Queen’s Revival
With the world falling into chaos thanks to Ryoma, Zawame City has become an isolated place infested with Inves. Kouta's sister Akira, along with others in shelters, go outside to…
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Episode 35
Micchi’s Ark
Rosyuo begins the invasion of the Earth by opening Cracks around the world. Kouta, Kaito, and Yoko plan an assault on the Yggdrasill tower to stop him, while Kouta also…
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Episode 36
Sibling Settlement! Zangetsu VS Zangetsu Shin!
As Mitsuzane/Zangetsu Shin is about to kill Kouta, Takatora appears and stops him, revealing the two's relationship as brothers to Kouta. Later, the fight of the two brothers begins as…
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Episode 37
Baron’s Soccer Showdown! The Summer Battlefield!
Kaito meets DJ Sagara, who provokes him and summons a ghost-like Gaim Kiwami Arms. After the battle, he gets caught up in an alternate world where he leads Team Baron…
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Episode 38
The Professor Returns
Mitsuzane seems to be hallucinating, claiming he can see Takatora even though he knows he defeated him. Elsewhere, Ryoma returns to Zawame City, and Kouta believes he may now be…
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Episode 39
The Desperate Plan to Break Into The Tower!
Kouta and Ryoma work together to break into Yggdrasill Tower to free Mai and Akira.
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Episode 40
Overlord’s Awakening
Kouta follows the passage to Yggdrasill Tower and to his surprise discovers an underground dungeon. Redyue informs Kouta that he has become one of the Over Lords, rather than a…
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Episode 41
Clash! The Overlord King
Kaito fights with Mitsuzane but the two are disrupted by Ryoma. Meanwhile, Mai talks to Rosyuo and is entrusted with the Forbidden Fruit before entering a fight against Kouta and…
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Episode 42
Mitsuzane’s Last Transformation!
Kouta tries to prove that he has not changed, despite all Kaito has seen in Helheim, and helps the others clear Zawame of Inves. However, Mitsuzane and Ryoma discover that…
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Episode 43
Baron’s Ultimate Transformation!
As Gaim and Ryugen Yomi continue their battle, Kaito realizes that there is only one way for him to surpass Kouta now that he possesses the powers of the Over…
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Episode 44
Two People’s Visions of the Future
As Mai accepts the powers of the Golden Fruit and attempts to change the fate that has befallen her friends, Kaito seeks her out to gain its power, as well.
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Episode 45
The Final Battle of the Fated Two!
Zack sets a trap for Kaito, but... Meanwhile, Kouta has gained command over an Inves army whilst battling Kaito.
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Episode 46
The Fated Victor
Betting both their lives and beliefs, the final battle between Kouta and Kaito reaches its conclusion.
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Episode 47
Transform! And Towards the Future
Seven months after Kouta and Mai have left and colonized a new planet, all traces of Helheim Forest have been cleared from Zawame City, but a returning threat appears to…